Canadian beaver vs Greenish Mottled-Disk Lichen

Castor canadensis compared with Trapeliopsis viridescens

Key Differences

Canadian beaver is Not Evaluated while Greenish Mottled-Disk Lichen is Critically Endangered.

Taxonomic Classification

Rank	Canadian beaver	Greenish Mottled-Disk Lichen
Kingdom	Animalia (Animals)	Fungi (Fungi)
Phylum	Chordata (Chordates)	Ascomycota (Sac Fungi)
Class	Mammalia (Mammals)	Lecanoromycetes (Lecanoromycetes)
Order	Rodentia (Rodents)	Baeomycetales (Baeomycetales)
Family	Castoridae (Beavers)	Trapeliaceae
Genus	Castor (Beavers)	Trapeliopsis
Species	Castor canadensis	Trapeliopsis viridescens

Conservation Status

Canadian beaver

NE — Not Evaluated

Population: ~15.0M

Trend: Stable →

Greenish Mottled-Disk Lichen

CR — Critically Endangered

Physical Characteristics

Attribute	Canadian beaver	Greenish Mottled-Disk Lichen
Diet	Herbivore	—
Average Lifespan	15 years	—
Average Length	1.0 m	—
Average Weight	25.0 kg	—

Habitat & Geographic Range

Canadian beaver

Habitat

Typically found in grasslands, forests, and vegetated habitats.

Range

Widely distributed across Europe (15 countries), North America (United States), and South America (Argentina, Chile).

Greenish Mottled-Disk Lichen

Habitat

Native to Europe and North America, inhabiting ecosystems characteristic of the region.

Range

Distributed across Norway, Sweden, and United States. Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Canadian beaver

The largest rodent in North America, Canadian beavers weigh up to 32 kg and are master ecosystem engineers inhabiting rivers, lakes, and wetlands across Canada and the northern United States. By felling trees and constructing dams up to hundreds of meters long, beavers create ponds that provide habitat for hundreds of species. Their lodges and canals transform entire watersheds. Once nearly hunted to extinction for their fur, beaver populations have recovered strongly.